I had the 14" T42p and it's definitely one of the most solidly built of the Thinkpads (the 600 series also springs to mind as particularly "indestructible"). I'd left mine switched on and open on the desk in my office when a torrential downpour caused a leak in the roof right above it - when I got into the office the next day I was met by a faint smell of burnt electronics and found my cherished T42p had been completely filled with rainwater. I removed all batteries, took out the keyboard and DVD drive and left it on the radiator for a few days, but any hope I had was lost when I reinstalled the parts and tried to turn it on; it was of course dead as a dodo. Chucked it in a drawer and tried to forget about it, but found it a month later and was amazed to see it spring to life when I flicked the power switch! I kept using that machine for several years, and even did a hardware mod on it to change the HDD interface from IDE to SATA. It was a lovely machine.